座椅安全气囊training

General presentation:Side impactBy Sverine WollinTechnical consultant Side impact.Date Severine Wollin ACRECE R95EuroNCAP US LINCAP Pole test Out Of Position (OOP)IIHS General presentation : side impactRequirementsFMVSS 214 Date Severine Wollin ACRPROTECTIONThe airbag protect the occupant in a side crashGeneral presentation : SABPole against vehicle Vehicle against vehicleDate Severine Wollin ACRThorax airbag: a pressured bag is positioned between the door and the occupant to protect the ribs and the abdomen of the occupant. It is usually used together with a head protection system.General presentation : SABDate Severine Wollin ACRA head and thorax module protect the ribs, the abdomen and the head of the occupant.It is usually used in cabriolet vehicle or vehicle not equipped with IC.It is mounted in the vehicle the same way as a thorax module.General presentation : SABDate Severine Wollin ACRThe thorax and pelvis module protects the ribs the abdomen and the pelvis of the occupant.It pushes on the pelvis to increase the protection in severe crash or with poor vehicle characteristics. It is mounted in the vehicle the same way as a thorax moduleGeneral presentation : SABDate Severine Wollin ACRSAB visibleThe bag opens the cover to deploy.Seat upholsterySeat frame SectionGeneral presentation : SABModule Date Severine Wollin ACRSAB semi visibleThe module is hidden behind seat upholstery but function is same as visible moduleSide clip sewn on the seat upholsteryMODULE Seat upholsterySECTIONOpening line of the seat upholsteryAfter deploymentGeneral presentation : SABDate Severine Wollin ACRSAB unvisibleThe bag must break the seam of the seat upholstery to get outSeat upholsteryMODULESECTIONGeneral presentation : SABDate Severine Wollin ACRSAB in doorThe bag must open the door cavity to get out. This is not preferred design, it has to be used for example at the back seat when the seat are removable and the module can not be in the seat.MODULE fixed on doorDoor trimCavityGeneral presentation : SABDate Severine Wollin ACRREAR SABThe module can be visible or unvisibleGeneral presentation : SABDate Severine Wollin ACRComponents X1X1X1 X1X1Mode de fixation CoverDeflectorInflated bagInflatorBracket if neededGeneral presentation : SABDate Severine Wollin ACRFoldings General presentation : SAB3 main type of folding:Inboard RollOutboard rollZ fold (not recommended due to OOP)The decision on the folding type is made by:- Deployment performance (time, direction)- OOP requirements- Space in cover (very important to try to get as much space as possible from seat supplier)Date Severine Wollin ACRSAB assemblyX1X1X1 X1X1Mode de fixation 1- Assembly deflector with inflator2- Assembly deflector/inflator in bag3- Assembly bag in cover4- Attachment of inflator on container5- Bag folding6- Cover closeGeneral presentation : SABModule is then assemble onto seat frame with 2 nuts.Date Severine Wollin ACRBag pressure Hybrid inflator (PYRO+GAZ) TYPE ASH1General presentation : SABPyrotechnical inflator TYPE ASP2See design guide lines for detailsDate Severine Wollin ACRBag The bag is made from fabric closed by a seam, the silicon which gives impermeability is on the inside of the bag. Vents holes help the gas evacuation which help the energy absorption. Some features can be added like tear seam, tether, diffuser loopVentSeamInflator positionGeneral presentation : SABDate Severine Wollin ACRBetter protection Rib deflection curvesRib deflection 27 mm Rib deflection 37 mm- with SAB thorax_ Without SAB thoraxGeneral presentation : SABDate Severine Wollin ACRValidation Simulation if possible.Static tests in fixture.Static tests in seat.Drop rigSled testsOOP when requirementsFull scale crashGeneral presentation : SABDate Severine Wollin ACRGeneral presentation:Inflatable curtain (IC)Date Severine Wollin ACRProtectionTo protect occupants head during a side crash.General presentation : Inflatable curtainPole crash Car/carRoll overDate Severine Wollin ACRHead protection by deploying a pressurized bag on the side of the head liner between the impact and the occupants heads.General presentation : Inflatable curtainDate Severine Wollin ACRThe folded bag is positioned between the head liner and the vehicle side frame. The inflator is positioned at the B pillar or C pillar.Folded bagInflatorFolded bagHead linerVehicle side frameInflatorVehicle side frame ForwardC pillarGeneral presentation : Inflatable curtainDate Severine Wollin ACRGeneral presentation : Inflatable curtainDoor mounted ICSame function as an IC but located in the door, aimed at cabriolet cars.Date Severine Wollin ACRComponentsX1X1X1 X1X1Mode de fixation FONCTION: Fix module on vehicleClipsWrapper (PA, PP)FONCTION: maintain folded bag.BagFONCTION: Maintain a pressurized volumeComplete moduleInflatorFONCTION: Give gasGas pipe (metal or plastic)FONCTION: diffuse gas into bag.Other:ClampGeneral presentation : Inflatable curtainDate Severine Wollin ACRFolding General presentation : Inflatable curtainDate Severine Wollin ACRBag pressure The inflator will inflate the bag in less that 30ms.Hybrid inflator (PYRO+GAZ) type ASH1 used for bag volume 12LHybrid inflator (PYRO+GAZ) type ASH2 used with bag volume 18LGeneral presentation : Inflatable curtainDate Severine Wollin ACRBag The bag can be sewn or OPW:- 1: 2 main panels are assemble by a seam, silicon coating is inside the bag- 2: Weaving (One Piece Woven) simultaneously of the 2 panels of the bag , the silicon is added on the outside of the bag.Bag OPWGeneral presentation : Inflatable curtainDa